Seminario 22/12. Darragh Flannery (University of Limerick)- School socio-economic context and student achievement in Ireland: An unconditional quantile regression analysis using PISA 2018 data

school

The existence of a ‘multiplier’, ‘compositional’ or ‘social context effect’ is debated extensively in the literature on school effectiveness. Some researchers have posited that the relationship between social context and achievement is mediated by school, teacher or classroom factors, such as teacher expectations, quality of instruction, or adequacy of school resources. In this context, this…

Seminario 22/11: Magdalena Kapelko (Wroclaw University of Economics and Business) – Measuring Firms’ Dynamic Inefficiency Accounting for Corporate Social Responsibility in the US Food and Beverage Manufacturing Industry

CRS

Abstract This article proposes an innovative approach to evaluate firms’ inefficiency accounting for corporate social responsibility (CRS) activities of firms. In the first step, we estimate dynamic inefficiency for each input, marketable output, CSR output and investment using Data Envelopment Analysis. Dynamic inefficiency measure accounts for the confounding role of adjustment costs related with firms’…

Seminario 22/10: Maria Chiara Pagliarella (University of Cassino and Southern Lazio). Three-fold Fay-Herriot model for small area estimation

Estadistica

This paper introduces a three-fold Fay-Herriot model with random effects at three hierarchical levels. Small area best linear unbiased predictors of linear indicators are derived from the new model and the corresponding mean squared errors are approximated and estimated analytically and by parametric bootstrap. The problem of influence analysis and model diagnostics is addressed by…

Seminario 22/08: Agustí Segarra Blasco (Universitat Rovira i Virgili). Investigar y divulgar: ¿dos caras de la misma moneda?

divulgacion

La investigación científica y la divulgación, esto es poner al alcance de un público más amplio son dos caras de una misma moneda, pero no es lo mismo. Entre los científicos y también entre los economistas encontramos a grandes investigadores que con el paso de los años también se han convertido en divulgadores muy populares…

Seminario 22/07: Mauro Mediavilla (Universitat de València e Institut d’Economia de Barcelona) Impact of Bullying of Academic Performance in Spain

bulling

Bullying is a widespread problem throughout the world that affects one in three students and whose consequences can last in the long term. The main objective of this research is to study the causal relationship between bullying and academic performance on 15-year-old students in Spain. The databases used come from the external evaluation of the…

Seminario 22/02 Javier Palarea-Albaladejo (U. Girona) – Advances in compositional data analysis with some recent scientific applications

índice

Multivariate observations referring to parts of a whole, so-called compositions or compositional data in statistics, are common across varied scientific fields. This is for example the case when dealing with chemical concentrations, food nutritional contents, election vote shares, investment portfolios, time-use and behavioural patterns, relative abundances, amongst others. Their distinctive feature is that there is…

Seminario 22/1: Manuel Serrano (Bocconi University, Italia). The effect of Long-Term Care (LTC) benefits on healthcare use

índice

Abstract:  This paper examines the role of LTC benefits on the use of primary and secondary care by exploring a detailed administrative database in Spain. We estimate the causal effect of receiving LTC benefits by exploiting exogenous variation in the leniency of the examiners who assess the claimants’ LTC needs. We find that a monthly LTC…

Seminario 21/22: Francisco Morillas (Universidad de Valencia): Un estudio de costes para el cambio de tecnología en el diagnóstico y tratamiento de enfermedades gastrointestinales

hospital

Este trabajo trata de determinar la conveniencia en el cambio de tecnología para la determinación de una enfermedad gastrointestinal. La determinación de la bacteria o virus que ataca al organismo puede ser determinante en las primeras horas, evitando posibles infecciones graves e incluso sepsis. Los dos procedimientos comparados son: (i) técnicas de cultivo estándar, utilizado…

Seminario 21/20: Antonio Manuel Durán (Universidad de Córdoba): Time series data mining and its applications in real-world problems

Time series

Currently, information systems such as sensors produce a large amount of data, which is expected to experience exponential growth in the coming years. These data are often treated as time series, which are chronologically collected data representing a time-varying function. Time series appear in a wide range of scientific fields, such as hydrology, paleoclimatology or…

Seminario 21/19: Maria Chiara Pagliarella (INAPP of Rome and University of Cassino and Southern Lazio): Areal sampling strategies for estimating totals and averages on a grid of quadrats: applications to forest surveys

Forest

The Reduction of Emissions from Deforestation and forest Degradation (REDD) project was proposed and initiated in 2005. Monitoring of forest cover by statistical methodologies is a key pre-requisite. Forest cover is usually estimated at large scale by spatial sampling strategies, in which the study region is partitioned into polygons of equal size (e.g. quadrats). Then,…